Yeah, regardless of wonderous looking facilities, recommendations of others... still check. I sent one of my horses to a trainer, when my eldest was a baby & I couldn't deal. I thought I'd done my research enough, found a 'top notch' training facility who was recommended by a lot of 'show types', and who I'd had extensive phone convos with, which seemed like it would be awesome - if expensive & a long way from home! My horse was booked to have a month at least there, for some general riding as he was young & green & I had 'baby brain'.
After the first week, I went to see him... this overly friendly, trusting boy was AFRAID of anyone coming in his paddock gate! I was told he was extremely difficult for the man(his main trainer) to catch, so a young girl was enlisted to get him & take him alone to a stable each morning to await the guy(he'd never been stabled before & one thing they were big on - in theory only I was to find - was that you shouldn't just dump a horse in a scary situation like that without prior preparation so they won't stress about it). He took a few minutes for me to convince him to come to me. This easygoing horse was uptight & tense generally. He had sores over his nose from a too tight halter having been left on for the week & sores at the corners of his mouth from the bit they told me they wouldn't use(as he was green & I'd only started him bitless, I'd requested they continue that way & they agreed).
I had a lesson on him while I was there, from the young girl who caught him - never even got to speak to the supposed trainer in person, he'd 'passed the buck' to the girl, who told me she'd been working with him the last few days. Despite our copious prior discussions about techniques, the lesson was a nightmare - this girl did dressage, I rode more 'western', and she kept telling me I was using opposite aids... obviously my horse was very confused, to have been taught to do the opposite for the last week, of what he'd learned with me previously. Then the guy walked past(didn't even acknowledge us) & my horse nearly had a meltdown! He panicked & spun & if he hadn't been well conditioned to a 'one rein stop' I don't know if I could have stopped him running in terror!
The next day, I took the float & picked him up. Not only was the week itself expensive, but it took a lot of time, effort & heartache to get him (mostly) over the hangups he gained in that short week. Many years later, he's still nervous of strange men, very 'separation anxious' to be left alone or stabled, if he's stressed about anything, he still gapes his mouth & throws his head back when I go to take off the halter, as he obviously learned to do with an uncomfortable bit.